Our BESS Locations
Successful Developments Previously sold
Arbroath battery storage(Angus, Scotland)
- Capacity:35MW
- Status:consented and sold to Gresham House fund
- Operational
Couper Angus battery storage(Perth, Scotland)
- Capacity:40MW
- Status:consented and sold to Gresham House fund
- Operational
Keith Battery Storage(Moray Scotland)
- Capacity:39mw
- Status:consented and sold to Field Energy.
- Operational
BESS project currently in a JV to construct and operate in partnership with Eren Industries
Walsoken Battery Energy Storage System (BESS)
A Strategic UK Energy Storage Development
Bia Power is developing the Walsoken Battery Energy Storage System (BESS), a utility-scale energy infrastructure project located near Wisbech in Norfolk, England. The project is designed to support the UK's transition to a cleaner, more flexible and more resilient electricity grid.
Walsoken benefits from secured land rights, planning consent and an accepted grid connection offer, positioning the project as an advanced Ready-to-Build battery storage opportunity in the UK market.
The development has been structured with optionality: it can be delivered as a 200MW / 2-hour merchant BESS, or adapted into a 150MW / 8-hour long-duration energy storage configuration designed to target more stable, contracted revenue frameworks.
Project Overview
| Item | Details |
|---|---|
| Project | Walsoken Battery Energy Storage System (BESS) |
| Location | Approximately 1 km east of Wisbech, in the West Norfolk District of Norfolk, England |
| Local Authority | Borough Council of King's Lynn and West Norfolk |
| Coordinates | X = 548511, Y = 309643 |
| Proposed Capacity | 200MW / 2-hour configuration for the merchant business case, or 150MW / 8-hour configuration for a long-duration / CfD-style revenue case |
| Land Status | Single landowner; option to lease signed; option expiry year 2030 |
| Access | No third-party access required |
| Planning Status | Application consented in July 2025 |
| Grid Connection | Preliminary grid offer accepted for 200MW unconstrained |
| DNO | UK Power Networks (UKPN) |
| Connection Point | North Anglia Connection Node D 132kV Substation |
| Grid Connection Date | 30 September 2034, with potential to benefit from UK grid queue reforms and prioritisation of advanced projects |
| Connection Cost | Approximately £63,000 per MW |
Flexible Development Strategy
Walsoken has been designed with flexibility in mind. The project can be developed under two distinct commercial strategies depending on market conditions, investor appetite and the preferred risk-return profile.
Merchant BESS Model - 200MW / 2-Hour Configuration
- The existing layout is designed around a 200MW / 2-hour system.
- This configuration is suited to the merchant business model, including participation in the Balancing Mechanism, Capacity Market, energy arbitrage and ancillary services.
- The 200MW configuration is well suited to short-duration grid flexibility and offers potentially higher returns, albeit with greater merchant revenue exposure.
Layout below showing the 200MW / 2-hour configuration:
Long Duration Energy Storage Model - 150MW / 8-Hour Configuration
- Using suitable technology, the site can potentially be configured as a 150MW / 8-hour long-duration storage project.
- This configuration is intended to align with the UK's Long Duration Energy Storage framework, including cap-and-floor or CfD-style revenue support structures where applicable.
- The long-duration route is designed to enhance bankability by targeting more stable, contracted revenue streams and reducing exposure to purely merchant revenues.
- The trade-off is higher capex and greater procurement and delivery complexity compared with the 200MW / 2-hour merchant configuration.
Layout below showing the 150MW / 8-hour configuration:
Positioned for the Future UK Grid
The UK battery storage market is entering a new phase of maturity. Previous headwinds, including uncertainty around market reform, high interest rates, elevated capex and grid connection uncertainty, are now beginning to ease.
Walsoken is well placed to benefit from this shift. The project has secured land, achieved planning consent and accepted a grid connection offer. These characteristics are expected to be important as National Grid and network operators continue reviewing the connection queue and prioritising advanced, deliverable projects.
As a large-scale, consented BESS project with commercial flexibility, Walsoken is positioned to support the UK's growing requirement for flexible capacity, renewable integration and long-duration storage solutions.
Supporting the Energy Transition
The Walsoken BESS project is expected to contribute to the UK energy transition by:
- Increasing grid flexibility and resilience.
- Supporting the integration of renewable generation.
- Providing capacity to help balance electricity supply and demand.
- Reducing curtailment and system balancing costs over time.
- Improving energy security by enabling more efficient use of domestic renewable power.
- Providing an investable platform for either merchant flexibility revenues or longer-term contracted revenue structures.
Projects still Available for new business
Fiddes Battery Storage (Aberdeenshire, Scotland)
- Capacity:30mw
- Status:Ready to Build
Drumlithie Battery Storage (Aberdeenshire, Scotland)
- Capacity:49.9mw
- Status:Ready to Build
Bia Power is actively looking for new investors for its projects, and any investors please get in touch with us at [email protected]